package com.nuaa.shopping.exception;

/*
 * 用户名已存在异常
 */
public class UsernameExistsException extends Exception {

	public UsernameExistsException() {
		super();
	}

	public UsernameExistsException(String message, Throwable cause,
			boolean enableSuppression, boolean writableStackTrace) {
		super(message, cause, enableSuppression, writableStackTrace);
	}

	public UsernameExistsException(String message, Throwable cause) {
		super(message, cause);
	}

	public UsernameExistsException(String message) {
		super(message);
	}

	public UsernameExistsException(Throwable cause) {
		super(cause);
	}

}
